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Fl_Scalable_Graphics_Driver
Most coordinate calculations are done with the new inline function
int Fl_Scalable_Graphics_Driver::floor(int coord)
that is used by both the Windows and X11 platforms.
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The change lets this function enlarge the size only when strictly necessary
for image tiling.
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As discussed, only the window position becomes rounded to nearest integer value
when a fractional GUI scale factor is applied.
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Changes here concentrate the fix within static function alpha_blend() and thus
are visible only when drawing transparent images under X11 platform
without Xrender.
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Fl_WinAPI_Screen_Driver::read_win_rectangle_unscaled()
Thanks to "fire-eggs" for spotting it.
Also minor optimisations in Fl_X11_Screen_Driver::read_win_rectangle_unscaled() and
Fl_Cocoa_Screen_Driver::read_win_rectangle_unscaled().
This closes PR #151.
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The intent is to gather in a single place of the X11 platform source code
all variable elements when using dlopen() and dlsym() system functions
(e.g., .so vs .dylib extension name, is RTLD_DEFAULT available, locations
to be sought).
Member function Fl_System_Driver::load() is created only to support
Fl_Plugin_Manager::load().
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run-time.
The code falls back to the ad-hoc method if uuid_generate() isn't available.
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A lot of code touched because low level functions needed to pass up
error messages reliably, and this had to propagate up the entire
driver hierarchy.
Tested OK *in English* on:
> Linux
> OSX 10.10.x
> Windows VS2017
> Windows mingw64
I have no way to test on Android, but it might work.
TODO: Needs testing in other languages to verify proper UTF8 error messages,
esp. with Windows VS, due to complexities with FormatMessage() -- see get_ms_errmsg()
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- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files
The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
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Fix for issue #90: Setting an svg image as a window icon causes a segfault.
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!defined(RTLD_DEFAULT)
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There are now 2 kinds of GTK libraries (V2 and V3) and two dialogs
the file chooser and the printer chooser.
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The main fixes are only to avoid static code analyzer warnings reported
in issue #5, but there are also minor bug fixes included. These bug
fixes are more of theoretical concerns though.
Close #6.
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Added Fl_Preferences::file_access() and various flags that make it possible to limit or completely deny file access to the preferences system, either for the core library or for the application or both.
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See comment 14 (excerpt):
"The current implementation basically handles add_timeout() the same
way as repeat_timeout(), i.e. add_timeout() *calls* repeat_timeout().
However, repeat_timeout() intentionally *corrects* the timeout value
by the value found in the global variable 'missed_timeout_by' which
is set when the timer expires, directly before the timer callback
is called. This variable is never reset."
This commit resets the variable as necessary in Fl::add_timeout().
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Timeouts queued during Fl_Widget::draw() - called by Fl::flush() -
would not be serviced unless other events were processed. For
Details see STR 3188.
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A recent commit changed the library name, supposedly unintended.
While testing I found that the debug statements generated confusing
output (both "selected GTK-3" and "selected GTK-2") when GTK-3 was
available.
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run-time
The code to determine whether the GTK library is available is now in Fl_X11_System_Driver::probe_for_GTK()
called both by Fl_Printer::begin_job() and Fl_Native_File_Chooser.
New Fl::option OPTION_PRINTER_USES_GTK allows to deactivate use of
the Gnome print dialog.
Minor change in Fl_Native_File_Chooser: GTK version 3 is searched before version 2,
whereas the search order was the opposite before.
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The case was under macOS with a non-GL parent window mapped to a retina display
containing a GL subwindow and if the app did not call Fl::use_high_res_GL(1).
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The new argument gives the window to be captured, or NULL to indicate capture
from the current offscreen.
Calling this function becomes easier because less dependent on global variables.
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partially visible windows
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Fl_Screen_Driver::default_icons()
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Under gnome, Tweaks -> Fonts ->Scaling factor allows to change
the size of all fonts handled by gnome.
With that change, FLTK apps obey to changes to Xft.dpi.
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factor
Previously, the display scaling factor value under gnome was sought in the gnome
database using the gnome_scale_factor() function. But that information is no
longer present.
File $HOME/.config/monitors.xml was also used to get that information.
Using the Xft.dpi X resource is simpler and more general because it's
effective both for gnome and KDE.
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The procedure to set screen scaling factors becomes:
1) each screen scaling factor is set to 1
2) the OS is queried according to each platform to get screen scaling factor
values
3) The value of FLTK_SCALING_FACTOR, if present, is used to multiply
scaling factors
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effective_bitmap_
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Fl_Window::is_shaped()
The new function allows to get the window's shaping image
and delete it after use, if appropriate.
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Warning was: ignoring return value of ‘char* fgets(char*, int, FILE*)’
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Gnome now seems to store the value of the display scale factor in file
$HOME/.config/monitor.xml. Previously, that value was readable with
the gsettings command.
The present commit uses the information found in that file
and reverts back to the gsettings command if that information is not found.
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